eclipse. Downloads: 1. Note that due to a name collision with an earlier programming language called Go!, the language may change its name in the future. In Section 5, we take. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. It is used to create or extend software programs that originally operated primarily under MS-DOS. We would like to show you a description here but the site won’t allow us. @jsinglet, you can open the declaration of Xtype grammar with F3 at with org. xHarbour is a portable implementation of the xBase language (Compiler & complete Run-time libraries). Teacher certification. NO PAD follows the xBase convention of truncating the longer string before doing the comparison. 1. Visual FoxPro, commonly abbreviated as VFP, is tightly integrated with its own relational database engine, which extends FoxPro's xBase capabilities to support SQL query and data manipulation. It is a Clipper-compatible compiler which is cross-platform, running on many operating systems (DOS, Microsoft Windows, Linux, Unix variants, several BSD descendants, Mac OS X, MINIX 3, Windows CE, Pocket PC, Symbian, iPhone, QNX,. Any xBase language provides a very productive way to build business and data intensive applications. FoxBase was one of the first Xbase languages to add template generation into the product. Section 3 introduces the Xbase language by giving an overview on design goals and some examples for Xbase expressions. The FoxPro Rushmore query optimization and the dBase WARP technology greatlydBase (also stylized dBASE) was one of the first database management systems for microcomputers, and the most successful in its day. Satisfactory performance even with huge tables. Xtest is a sibling of Xtend (also inherits from Xbase) and an uncle of Jnario (inherits from Xtend), so their documentation may be useful as well. We would like to show you a description here but the site won’t allow us. And Clipper in another vertical and rest of xbase in another vertical. This naming scheme can still be found in some of the code sections contained in this documentation. It's practically 100% backward compatible with CA-Clipper 5. Xbase is a programming language that combines both traditional programming concepts and database management functions. Vulcan. Unlike Xbase, which cares about individual records, SQL is interested mostly in groups of records. dBase's underlying file format, the . Core Utilities. 3c, and offers many modern language extensions, and extensive Run-time libraries. Other members of the xBase language family include Clipper and Recital. The X# compiler is intended to support multiple dialects in the xBase programming. Unsourced material may be challenged and removed. Visual FoxPro, commonly abbreviated as VFP, is tightly integrated with its own relational database engine, which extends FoxPro's xBase capabilities to support SQL query and data manipulation. 3b, Clipper '87 Summer compatibility * partial Xbase++ compatibility. Other members of the xBase language family include Clipper and Recital (database). texts are creative or imaginary and use language that appeals to the senses. We will learn later how to define and use functions and procedures. Harbour is not an exception. It will have the same features as C# 6, but will of course use the well known xBase syntax. It is based on the XBase language dialect and conventions. The X# compiler is intended to support multiple dialects in the xBase. Harbour is a free software compiler for the xBase superset language often referred to as Clipper (the language that is implemented by the compiler Clipper). xHarbour is a portable implementation of the Clipper/xBase language (Compiler & complete Run-time libraries). However even by the. Class creation and usage, including methods and instance variables. It's practically 100% backward compatible with CA - Clipper 5. Harbour consists of the xBase language compiler and the runtime libraries with different terminal plugins and different databases (not just DBF). 2e and 5. When HbRun begin, open a console screen with two basic area: status bars at top and dot prompt line at bottom. Translates RELATIONS into JOINS or OUTER JOINS inside the database server to have a better use of the SQL Engine features and gain performance. 3 dBase / xBase programming language. The Harbour Project is a Free Open Source Software effort to build a multiplatform Clipper language compiler. Overview: Resource Hacker is a resource editor for 32bit and 64bit Windows® applications. dbf file format had an independent existence. * * Author: Arthur Helfstein Fragoso * * This script has the specific use of integrating between a financial institution * and other two companies in the process of creating Installment Bills for * customers. Free download page for Project xHarbour Extended Harbour Compiler's xharbour-0. domainmodel. Cloud technologies of the Xbase++ platform allow the re-use of existing business logic as a service on a local or global scale. 3c, and offers many modern language extensions, and extensive Run-time libraries. xHarbour is a portable implementation of the xBase language (Compiler & complete Run-time libraries). All replies text/html 10/8/2008 9:32:35 PM MarciaAkins 0. Xbase (formerly known as xdb, also formerly known as xBase) is a collection of specifiations,. Any xBase language provides a very productive way to build business and data intensive applications. NET compilers. x. This is based on SQL versus the xBase language conventions. Pick the Xtend library and it should work for you. texts include essays, biographies, short stories, and poetry. . Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. With Xbase, DBMSs can directly access the database files. 3c,. The new experience of real 32-bit Clipper compatibility Home . Harbour is not an exception. Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. Harbour consists of a compiler and runtime libraries with multiple UI, database and I/O backends, its own build system and a collection of libraries and bindings for. texts use poetic language and imagery. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. Harbour is a modern computer programming language. dBase's undeAny xBase language provides a very productive way to build business and data intensive applications. No longer billed as a dBase compiler, Clipper became an “Application Development System”. Code Issues Pull requests Golang package for reading XBase FoxPro DBF/FPT files. PostgreSQL ISAM: With the PostgreSQL DatabaseEngine (PGDBE), for the first time it is possible to move existing . This naming scheme can still be found in some of the code sections contained in this documentation. This was the first book to cover multiple implementations of this language—which originated at JPL and later. Polygons were then built and cleaned from these lines. Xbase programmers had gotten into a rut. Visual FoxPro, commonly abbreviated as VFP, is tightly integrated with its own relational database engine, which extends FoxPro's xBase capabilities to support SQL query and data manipulation. We would like to show you a description here but the site won’t allow us. The story begins in 1979 with the VULCAN project. Xtext is a highly extendible language development framework covering all aspects of language infrastructure such as parsers, linkers, compilers. pellesc-4. A repository for showcasing my knowledge of the XBase programming language, and continuing to learn the language. These are. Harbour is not an exception. xHarbour is a portable implementation of the xBase language ( Compiler & Run-time libraries). With infrastructure monitoring, modern operations teams get complete observability of complex and hybrid systems, from a datacenter to thousands of Amazon, Google. xHarbour Builder is a set of tools built around the open source xHarbour compiler from xHarbour. Its intuitive design, xBASE language, an active multitiered repository make it easy to use—its power and extendibility will keep you using it. Thanks to a. I am currently writing an interpreter for an Xtext language that extends Xbase. September 2015XSharp Announcement The X# Compiler -1 • Will support many dialects of XBase Core Visual Objects / Vulcan Xbase++ FoxPro dBase (X)Harbour • The Core dialect could be seen as a C# compiler with Xbase syntax. The Xbase++ language supports COMMANDs, FUNCTIONs/PROCEDUREs, class objects and methods as well as codeblocks. NET, xBase++, Harbour, Foxpro, and more. See. res, *. It's practically 100% backward compatible with CA-Clipper 5. With Xtext™ you define your language using a powerful grammar language. An xBase-language computer program was written and compiled to generate PC-ArcInfo® SML code, which when run in turn generated all the arcs defining the quadrangle boundaries using exact coordinates at 7. NET platform. examples. Clipper is an xBase compiler that implements a variant of the xBase computer programming language. 2e and 5. Eclipse Platform and JDT Maven dependencies were updated to the 4. At the lowest estimate there must be 10,000 developers in India catering to customers. Harbour is not an exception. From HandWiki. The result of a DML command is then returned to the. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. XBASE is a generic term for implementations of what was originally the dBASE programming language. Extension for Visual Studio - X# is a . Visual Objects, Xbase ++) Vulcan. Web Frameworks. Which is xBase language does Visual FoxPro use? Other members of the xBase language family include Clipper and Recital (database). io Public Website HTML 10 24 1 1 Updated Sep 27, 2022. Find an online education degree for you. "Implementing Domain-Specific Languages with. Harbour is a cross-platform compiler and is known to compile and run on MS-DOS, Windows (32 &. There seems to be very very huge migration to Harbour as it became popular through word of mouth itself. Monday, October 13, 2008 5:23 PM. Overview Harbour is the open/free software implementation of a cross-platform, multi-threading, object-oriented, scriptable programming language, backwards compatible. In this article we are going to see the history of XBASE languages and how the creation of Harbour. From David Macias. dbCloseArea () Close a database file in a work area. ) Note: If you are used to creating indexes at the command window (or dot prompt), they can still be done that way. Harbour is the free software implementation of a multi-platform, multi-threading, object-oriented, scriptable programming language, backward compatible with Clipper/xBase. Reusable expression language that interoperates with Java. xHarbour is a portable implementation of the xBase language (Compiler & complete Run-time libraries). the full version of the xHarbour Language Reference Guide in the demo installer (the . During the 1980s and into the mid-90s xBase was the primary business language used on microcomputers archiving a dominance similar to what Cobol had on larger systems, with the majority of financial and business admin software for PCs being written in an xBase variant, and the vast bulk of custom business solutions. dbCommit () Updates all index and database buffers for a given work area. Harbour is not an exception. You can permanently throw away all the marked records when you want. MaxScript is the built-in scripting language fo Autodesk, 3ds Max, and Autodesk 2ds Max Design. 3c, and offers many modern language extensions, and extensive. eclipse. Find helpful customer reviews and review ratings for Xbase Programming for the True Beginner: An Introduction to the Xbase Language in the Context of dBASE Iii+, Iv, 5, Foxpro, and Clipper at Amazon. Harbour is a cross platform compiler and is known to compile and run on MS-DOS, MS-Windows, OS/2, GNU/Linux and Mac OSX. 2e and 5. The rules are a Domain Specific Language based on the Xbase language and it bares the most resemblance to the Xtend language with some missing features (e. The document has moved here. Clipper is an xBase compiler that implements a variant of the xBase language. 0 milestones release if that makes any difference. xHarbour is a portable implementation of the xBase language (Compiler & Run-time libraries). NTXDBE and CDXDBE DatabaseEngines when opening or creating tables, using standard xBase commands and functions such as DbUseArea(), DbCreate() or USE. 2. This kind of language really is a sweet spot for DSLs, so feel free to use this as a blueprint and add your project specific features later on. 2e and 5. Downloads: 1 This Week. xtext. 0: Large-scale Knowledge Enhanced Pre-training for Language Understanding. – Alex. dbCommitAll () Flushes the memory buffer and performs a hard-disk write. However, this standard was not selected, since it is not easily used by those not using an xBase language, and lacks the flexibility. It's practically 100% backward compatible with CA-Clipper 5. pdf) or read online for free. It comes in different flavors, such as Core, Visual Objects, Vulcan. Clipper is an xBase compiler that implements a variant of the xBase language. Hybrid Language. Any xBase language provides a very productive way to build business and data intensive applications. License: EPL 2. . For questions about the line and polygon clipping library use the tag clipperlib instead. Harbour's implementation of the Macro Operator allows for runtime compilation of. Harbour is a free software compiler for the xBase superset language often referred to as Clipper (the language that is implemented by the compiler Clipper). It supports multiple dialects of xBase. As a true compiler, it translates the very popular database 4GL xBase source. It comes in different flavors, such as Core, Visual Objects, Vulcan. . As xBase languages and utilities are very popular (perhaps the most popular) for data handling applications, many parties to the ADIF proposal discussion favored using xBase files as the physical specification. SQLRDD was created to access SQL database servers like Oracle, Microsoft SQL Server, IBM DB/2, Postgres, Sybase, MySQL, Firebird and others, from xHarbour xBase language just like you are used to use DBFCDX or any other regular xBase database driver. In a sense, it is a JIT compiler, adding a layer of interpretation to web pages situated between HTML and JavaScript. X#, pronounced X sharp and often written XSharp, is an xBase -compatible programming language for the Microsoft . Harbour is not an exception. 2e and 5. The Xbase++ language is truly the next generation development tool with its innovative features and technologies. FAQ. The "core" language can be seen as C#. xHarbour is a portable implementation of the Clipper/xBase language (Compiler & complete Run-time libraries). xtext. Harbour is a cross-platform compiler and is known to compile and run on MS-DOS, Windows (32 & 64), Windows CE, Pocket PC, OS/2, GNU/Linux and Mac OSX. 0. XSharp is a an open source version of an old development language (xBase) reinvented for the . It's practically 100% backward compatible with CA-Clipper 5. ruby database foxpro xbase dbf dbase Updated Jul 28, 2023; Ruby; SebastiaanKlippert / go-foxpro-dbf Star 64. Language links are at the top of the page across from the title. NET platform. Jul 12, 2017 at 6:46. FlagShip is available for and is cross- compatible to different computer platforms, such as Linux, Unix and Microsoft Windows. People were using tools such as templates and screen painters. xHarbour is a portable implementation of the xBase language (Compiler & complete Run-time libraries). NET, xBase++, Harbour, Foxpro, and more. Toggle dBase / xBase programming language subsection. Easy and Safe Multithreading. dBase (also stylized dBASE) was one of the first database management systems for microcomputers and the most successful in its day. dbf file format had an independent existence. Harbour is a cross-platform compiler and is known to compile and run on MS-DOS, Windows (32 & 64), Windows CE, Pocket PC, OS/2, GNU/Linux and Mac OSX. This reference documentation gets automatically refreshed. Visual FoxPro, also known as VFP, is intimately linked with its own relational database engine, which extends the xBase capabilities of FoxPro to allow SQL query and data manipulation. Clipper is an xBase compiler that implements a variant of the xBase computer programming language. The manuals and help files supplied with Visual FoxPro cover the scope of this command pretty thoroughly, and we haven’t found any funny behaviors beyond those described in. Windows (MingW32, OpenWatcom, PellesC, BCC, and MSVC)Harbour is a modern computer programming language. The domain-model example seems to just be xtext based, is there another version of the example built using xbase instead? I've installed the 2. By extending the Xbase language in a DSL definition, it is also possible to introduce new operators and define a 3. Visit us at our new site at GitHub. You can tell it was invented by people who had to deal with data and tables all day long. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. Expressive data-management language – the . the-oasis Public archive Phil Barnett's The Oasis (Archive) 5 6 0 0 Updated May 20, 2021. We will do this in four stages: First, you will learn how to refer to existing Java elements from within your language. Every xBase language is case insensitive, which means that all the following lines are the same: function MAIN FUNCTION main FuNcTiOn mAiN Of course, this feature is beneficial only if you use it to improve the code readability. The principal players in the MS-DOS portion of this market are FoxPro (Microsoft), dBASE V. Xbase (unlike SQL) is a record-based language. Language Drivers. * **/ #Include "TOPCONN. However, this standard was not selected, since it is not easily used by those not using an xBase language, and lacks the flexibility. (field names, types, sizes) and use the old XBase DML commands to append all rows from the original table to the. Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. 3c, and offers many modern language extensions, and extensive Run-time libraries. 3c, and offers many modern language extensions, and extensive Run-time libraries. g. 0 became a hit and offering only a subset of the xBase language in the package. It is a Clipper-compatible compiler which is cross-platform, running on many operating systems (DOS, Microsoft Windows, Linux, Unix variants, several BSD descendants, Mac OS X, MINIX 3, Windows CE, Pocket PC, Symbian, iPhone, QNX,. XSharp. * * The functions are called from the ERP Protheus TOTVS. 1. FlagShip is available for and is cross-compatible to different computer platforms, such as Linux, Unix and Microsoft Windows. Although it is a powerful general-purpose programming language, it was primarily used to create database /business programs. English; Deutsch. NET compilers. NET, xBase++, Harbour, Foxpro, and more. Xbase is a statically typed expression language for Java, that is implemented in Xtext and can be reused (imported) in other Xtext-languages. Xbase. We would like to show you a description here but the site won’t allow us. We will do this in four stages: First, you will learn how to refer to existing Java elements from within your language. Now run it on the latest operating system from Microsoft when used with dbDOSv™Visual FoxPro History. Harbour is not an exception. Xbase Language Reference. * This is an example The second line is. It can also simplify, find errors and fix them and debug your code. org. But these tools needed tighter integration with the language and the Fox style of working. To add this, right-click on the project and go to Java Build Path → Libraries → Add Library and. Then you will use Xbase to refer to generic types. xtext. testing EPL. dbDelete () Mark a record for deletion in a database. In 1988, I signed a contract to write a cross-reference book under the Microtrends nameplate featuring the dialects of the programming language first popularized by Ashton-Tate's dBASE database application development system. Though xHarbour is 100% backward compatible with the Clipper Language, xHarbour Builder adds many modern features and tools found in. The record pointer always points to a single record. dll; *. xtext » org. The Database Container. Harbour is a modern computer programming language. 3c, and offers many modern language extensions, and extensive Run-time libraries. We will learn later how to define and use functions and procedures. Every xBase language is case insensitive, which means that all the following lines are the same: function MAIN FUNCTION main FuNcTiOn mAiN Of course, this feature is beneficial only if you use it to improve the code readability. First of all, you could escape the keywords appearing, e. InfoPRO Consulting LLC. 3c, and offers many modern language extensions, and extensive Run-time libraries. It is a Clipper-compatible compiler which is cross-platform, running on many operating systems (DOS, Microsoft Windows, Linux, Unix variants, several BSD descendants, Mac OS X, MINIX 3, Windows CE, Pocket PC, Symbian, iPhone, QNX, VxWorks, OS/2/eComStation,. essentialocl. Product. Though xHarbour is 100% backward compatible with the. Compilers for the language, at the time of this writing, are available only for Linux and Mac OS X. eclipse. dbf file, is. X# has been built on top of Roslyn, the open source architecture behind the current Microsoft C# and Visual Basic . g. ). ) Visual FoxPro, commonly abbreviated as VFP, is tightly integrated with its own relational database engine, which extends FoxPro's xBase capabilities to support SQL query and data manipulation. With Xtext™ you define your. Any xBase language provides a very productive way to build business and data intensive applications. Downloads: 1. Literary. GitHub is where people build software. The Core language will be much like an xBase language version of the Microsoft C# compiler. And Clipper in another vertical and rest of xbase in another vertical. The language is based on a programming paradigm called. g. X# is an open-source development language for . Harbour is not an exception. DBFree is a freeware: originally born to keep alive the art of programming and saving the beatiful Xbase language from oblivion is nowaday a good choice for creating Rich Web Applications thanks to its support for AJAX, HTML5 and CSS3. Although it is a powerful general-purpose programming language, it was primarily used to create database/business programs. The grammar specifications for Xbase and Xtest are also available for your reference. 3c, and offers many modern language. Extended Portable Clipper Compiler and Run-Time Libraries. Xbase is a partial programming language implemented in Xtext and is meant to be embedded and extended within other programming languages and domain-specific languages (DSL) written in Xtext. It is a modernized, open sourced and cross-platform version of the older Clipper system, which in turn developed from the dBase database market of the 1980s and 1990s. Although it is a powerful general-purpose programming language, it was primarily used to create database/business programs. XML Processing. xHarbour is a portable implementation of the Clipper/xBase language (Compiler & complete Run-time libraries). 0 binaries for OS/2-eCS is a free software compiler for the xBase superset language often referred to as Clipper (the language that is implemented by the compiler CA-Clipper). Then you will use Xbase to refer to generic types. Harbour's implementation of the Macro Operator allows for runtime compilation of any valid Harbour. The Xbase language is an enhanced version of the dBase programming language used to access database files whose formats were originally developed for dBase on the PC. Click here to review the Harbour. Just as Xbase always believes one work area is the “current” area, one record in each table is also “current. the material in this session will be familiar especially the structure of the Xbase language. As a result you get a full infrastructure, including parser, linker, typechecker, compiler as well as editing support for Eclipse. • The other dialects will add datatypes and language constructs that are Xbase specific, such as USUAL, DATE. Like most dynamic. zip. At the lowest estimate there must be 10,000 developers in India catering to customers. XBase. XSharp. Large-scale knowledge enhanced pre-training for language understanding and generation}, author={Sun, Yu and Wang, Shuohuan and Feng, Shikun and Ding, Siyu and Pang, Chao and Shang, Junyuan and Liu, Jiaxiang and. You can. The following list defines the convention for. It uses tables, columns, and rows to store and access data, which can be retrieved using commands that are similar to SQL. Mocking. It's practically 100% backward compatible with CA-Clipper 5. XSharp. (A history of the early years of xBase can be found in the dBase entry. Works on the client. By extending the Xbase language in a DSL definition, it is also possible to introduce new operators and define a 3. Based on this core language compiler different flavours will be created with support for the data types, classes and objects that make each dialect unique. While there was a non-commercial predecessor to the Ashton-Tate product (Vulcan written by Wayne Ratliff), most clones. Harbour is a modern computer programming language. About Alaska Software: founded in 1997 with offices in Grand Junction, CO, New York City, NY, and in the metropolitan area of Frankfurt/Main, Germany concentrating solely upon the development and improvement of Xbase++ as a technology platform. eclipse. We would like to show you a description here but the site won’t allow us. This was presented by Eric Lendvai at Virtual Fox Fest 2020: is a compiler which generates pure C code from xBase-like pro. X# has been built on top of Roslyn, the open source architecture behind the current Microsoft C# and Visual Basic . Harbour code using the same databases can be compiled under a wide. We would like to show you a description here but the site won’t allow us. BI & Analytics. Xbase is a statically typed language, based on the Java type system. , Set (“Deleted”) These commands and functions control deletion of records from a table. Harbour is a modern computer programming language. In the third step, you will map your own DSL’s concepts to Java concepts. It supports multiple dialects and is still a partly closed source language. I know there's dBase but I don't know if it's powerful enough like FoxPro and I also know xHarbour but I haven't tried it. It is used to create or extend software programs that originally operated. 1 Type Inference method mapping for them. Harbour is not an exception. Learn languages by playing a game. Clipper is an xBase compiler that implements a variant of the xBase computer programming language. X# has been built on top of Roslyn , the open. It is based on the XBase language dialect and conventions. A scalar holds a single value, such as a string. Till Warweg, team lead and senior developer at Alaska Software talks today in great detail about the XbpBrowse navigational behavior and the differences betw. These are sometimes informally known as dBASE "clones". By extending the Xbase language in a DSL definition, it is also possible to introduce new operators and define a 3. Additional services for the web integration of Xbase. dbCreate () Creates an empty database from a array. specifically came about. More than 100 million people use GitHub to discover, fork, and contribute to over 420 million projects. Language teaching. Clipper is an xBase compiler that implements a variant of the xBase computer programming language. It is a combination of two languages: For back end programming and data handling, Harbour, an open source xBase language which is a superset of Clipper, which is itself a superset of dBase. NET, xBase++, Harbour, Foxpro and more. Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. 2e and 5. Harbour is a modern computer programming language. Learn more . We will learn later how to define and use functions and procedures. 0, which uses the dBase-compatible xbase language, supports ActiveX technology and is now available for $499 for new users and $249 for the upgrade. 2e and 5. In the third step, you will map your own DSL’s concepts to Java concepts. Macro Operator (runtime compiler) One of the most powerful features of xBase languages is the Macro Operator ‘&’. 2 (and largely in earlier versions of CA-Clipper); but supersets of Clipper have also been implemented commercially in. The X# front-end framework is used to design web applications and websites, including HTML allowed in. Xbase Generic term for the dBASE family of database languages. Language links are at the top of the page across from the title. Domainmodel with org. It is a Clipper-compatible compiler which is cross-platform, running on many operating systems (DOS, Microsoft Windows, Linux, Unix variants, several BSD descendants, Mac OS X, MINIX 3, Windows CE, Pocket PC, Symbian, iPhone, QNX,. With Xbase++ it. The problem arises in the. NET, based on the xBase language. The Xtext codebase (besides Xtend) is now, with a small number of exceptions in the language generation area, xbase and tests, completely written in Java and thus more proof in a future without Xtend. We present Xbase as part of Xtext, an expression language that can be reused via language inheritance in any DSL implementation based on Xtext. Clipper compiled application into an EXE file which help in protecting source code as well as greatly increasing the speed of such ap- plication. Harbour’s implementation of the Macro Operator allows for runtime compilation of any valid. Last but not least, you will use both Java types and your concepts within Xbase expressions and. Therefore Xbase programmers are usually not aware of the difference between DDL and DML, since the same programming language is used for both data definition and data manipulation. However, this requires you open the table like you used to do (USE. This section contains functions that make many date computations easier to perform. (The Xbase concept most similar to SQL’s point of view is the FOR clause. However, modern database management systems often are case-sensitive, so upper or mixed case names should no longer be used!dBase (also stylized dBASE) was one of the first database management systems for microcomputers and the most successful in its day. Xbase++ is a 100% Clipper compatible xbase language, enriched. More documentation here. We would like to show you a description here but the site won’t allow us. See moreVisual FoxPro originated as a member of the class of languages commonly referred to as "xBase" languages, which have syntax based on the dBase programming language. Harbour is not an exception. It's practically 100% backward compatible with CA-Clipper 5.